Overhead Powerline Hazards
Overhead power lines are not insulated and can carry tens of thousands of volts, making them extremely dangerous to employees who work in their vicinity.
Powerline workers must be especially aware of the dangers of overhead lines.
More than half of all electrocutions are caused by direct worker contact with energized powerlines because workers fail to maintain proper work distance. Fatal electrocution is the main risk, but burns and falls from elevations are also hazards. Using tools and equipment that can contact power lines increases the risk.
Examples of equipment that can contact overhead power lines include:
- Aluminum paint rollers
- Backhoes
- Concrete pumpers
- Cranes
- Long-handled cement finishing floats
- Metal building materials
- Metal ladders
- Raised dump truck beds
- Scaffolds
Avoid overhead power line hazards by following these best practices:
- Look for overhead power lines and buried power line indicators. Post warning signs.
- Contact utilities for buried power line locations.
- Stay at least 10 feet away from overhead power lines.
- Unless you know otherwise, assume that overhead lines are energized.
- De-energize and ground lines when working near them. Other protective measures include guarding or insulating the lines.
- Use non-conductive wood or fiberglass ladders when working near power lines.
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5-6. What is the cause of more than half of all electrocutions?
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